TOOGOO(R) MEGA2560 Proto Shield Prototype Shield Proto Shield V3 with Min Breadboard 170 for Arduino UNO2011 Arduino MEGA / MEGA2560 ProtoShield prototype expansion board with Immersion Gold PCB processing technology, motherboards, small gold square pad spacing, welding components easier. SOP28 SMD component package to be more handy Arduino electronics enthusiasts will not be directly insert bound components. Full Compatible with Arduino Mega ATmega1280 / MEGA2560.